Claims
- 1. A process for preparing a catalyst comprising ruthenium supported on a surface-modified titania support wherein said support comprises an oxide of a metal selected from the group consisting of niobium, vanadium, tantalum or mixture thereof, in a non-crystalline form, supported on said titania wherein said process comprises the sequential steps of:
- (a) forming said support comprising titania whose surface has been modified with and supports an oxide of a metal selected from the group consisting of niobium, tantalum, vanadium or mixture thereof wherein said supported, modifying oxide is a non-crystalline form;
- (b) impregnating said so-formed surface modified titania support with a solution of a ruthenium precursor compound; and,
- (c) converting said ruthenium precursor compound to ruthenium to form said catalyst.
- 2. The process of claim 1 wherein the amount of said supported oxide of niobium, vanadium, tantalum or mixture thereof present on said catalyst ranges from about 0.5 to 25 wt.% of the total support composition.
- 3. The process of claim 2 wherein the amount of supported ruthenium present in said catalyst ranges from about 0.05 to 10 wt.% of the total catalyst composition.
- 4. The process of claim 1 wherein said support is prepared by depositing a precursor of a solution of an oxide of niobium, vanadium, tantalum or mixture thereof on the surface of said titania to form a precursor/titania composite, followed by calcining the so-formed composite to convert said precursor to the oxide to form said support.
- 5. The process of claim 4 wherein the amount of said supported oxide of niobium, vanadium, tantalum or mixture thereof present on said catalyst ranges from about 0.5 to 25 wt.% of the total support composition.
- 6. The process of claim 5 wherein the amount of supported ruthenium present on said catalyst ranges from about 0.05 to 10 wt.% of the catalyst composition.
Parent Case Info
This application is a continuation-in-part of U.S. Pat. No. 626,457 filed on June 29, 1984, now abandoned.
US Referenced Citations (3)
Continuation in Parts (1)
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Number |
Date |
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Parent |
626457 |
Jun 1984 |
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